I made a special category on my site/blog for all the Free Game Friday posts:

http://blog.icewarm.org/?cat=13

This section shows all of the free game posts I've made. Check it out you may find some cool games. The Dismount games are some of my favorites. Facade is also really fun.

Dismount games: http://jet.ro/dismount/

Facade: http://www.interactivestory.net/